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W. o. POWLBR an w. G. SCHABFBR. BAKERS OVEN.

No. 380,561. l 'Patented Apr. 3, 1888.

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W. C. FOWLER 8v W. G. SCHAEFBR.

BAKBR'S OVEN.

No. 380,561. Patented Apr. a, 1888.-

(No Model.)

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BAKBRS OVEN.

Patented Apr. 3, 1888.

(No Model.)

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IINTTED STATES PATENT rares.

VILLIAM C. FOWLER AND WILLIAM G. SCHAEFER, OF ST. LOUIS, MISSOURI.

sAKsas OVEN.

SPECIFICATION forming part of Letters Patent No. 380,561. dated April 3,1888.

Application filed February 2l, 1887. Serial No. 228,399. (No model.)

To @il whom, it may concern:

Bc it known that we, WILLIAM G. FOWLER and VILLIAM G. SCHAEFER, bothcitizens of the United States, and residents of the city of St. Louis,in the State of Missouri, have invented certain new and usefulImprovements in Bakers7 Ovens, of which the following is a full, clear,and exact description, reference being had to the accompanying drawings,forming part of this specification, and in which- Figure I is a frontView of our improved oven, part in sec-tion. Fig. II is a transversevertical section at II II, Fig. III. Fig. III is a longitudinal verticalsection at III III, Fig. I. Fig. IV is a longitudinal vertical sectionat the jagged line IV IV, Fig. II. Fig. V is a horizontal section on theline V V, Fig. II. Fig. VI is a horizontal section on the jagged line VIVI, Fig. II.

l is the front wall; 2, the side walls; 3, the back wall, and a the top.

5 5 are the ash-pits under two similar furnaces, 6.

7 is the wall separating the two furnaces and the combustion-chambers 8,into which the products of combustion pass from the furnaces.

9 is an air-heating fiue made in the wall 7 and extending from the frontbackward, as shown in Fig. VI. The iiue has side openings, l0, leadinginto the combustionchambers to supply hot air to assist in thecombustion of the gases.

11 11 are the bridge-walls of the furnaces 6.

Each combustionchamber is separated at its lower part by a longitudinalwall, l2, and is spanned by an arch, I3, a space or opening, 14, beingleft between the top of the wall and the arch for the passage of thegases. From the air-heating due there are flues 15 extending upwardly,laterally, and downwardly through the brick-work of the arches and openat the top of the arches, where they discharge the hot air down into thespace or opening 14 to cause thc combustion of any inflammable gasesremaining. The products of combustion escape from the secondcompartment, 16, of each combustion-chamber through a number ofopenings, 17, in the side wall into a chamber, 18, in said wall, whichextends upward and forward to an opening, 19, into a Hue-chamber, 20,above the oven proper or baking-chamber 2l. The two openings 19 are atthe front outer corners of the dueschamber. (See Fig. V.)

22 and 23 are a number of dcflectors extending transversely from-thefloor of the chamber 20 to its top. The deflectors 22 extend from thesides of the chamber 20 to near its middle, and the deflectors 23 extendnearly to each side wall. 'Ihe effect of these deectors is tc cause theheated products of combustion from each furnace to mingle together atthemiddle ofthe chamber 20 at the front part, and then to form into twocurrents, moving outward to the sides, and then converge, and so on, asindicated by the arrows in Fig. V, until the said products reach thedischarge-openin g 24, leading tothe chimney or smoke-stack 25.

26 is the door of the bakingchamber or oven proper.

7 are peep-holes to the oven.

Ve claimas our inventionl. A bakers oven formed with a furnace, 6,bridge-wall Il, and combustion-chamber atthe rear of the bridge-wall,having alongitudinal wall, l2, dividing the chamber into two parts, 8and 16, and leaving a space or opening, 14, at the top, substantially asdescribed.

2. A bakers oven formed with a furnace, 6, bridge-wall 11, acombustionchamber at the rear of the bridge-wall, side iiues, 17, abal;- ing-chamber, 2l, over the furnace and chamber, fine-chamber 20over the baking-chamber, a chimney at the rear part of the fine-chamber,and wall-chamber 18, communicating with the side flues and extendingupward and for- Ward to the flue-chamber, substantially as described.

3. A baker-s oven formed with two furnaces, 6, bridgewalls Il,combustion-chambers at the rear of the bridgewalls, side dues, 17, abaking-chamber, 21, over the furnaces and charnbers, aduc-chamber, 20,over the baking-cham ber, having openings 19 at the front outer corners,deiiect-ors 22, extending from the sides to near the middle, deflectors23, extending to near each wall, and a chimney at the rear end, and thewall-chambers 1S, extending from the side flues to the corner openings,substantially as described.

4. 'Ihe combination, ina bakers oven, of a furnace andacombustion-chamber, a side wall of the furnace and chamber being formedwith IOC air-heating pipe and side openings into the combustion-chamber,and the top of the combustion-chamber being formed With iiues connectingWith the air-heating pipe discharging into the chamber, substantially asdescribed.

5. The combination, in a bakers oven, of tWo furnaces, 6, side by side,bridge-Walls 11, combustion-chambers side by side in rear of thebridge-walls, a longitudinal Wall, 7, separating the furnaces andcombustion-chambers, and an air-line, 9, extending through the wall,having side openings, 10, into the combustionchambers, substantially asdescribed.

6. The combination, in a bakers oven, of two furnaces separated by aWall and two combustion-chambers, one in communication with eachfurnace, and separated by the same Wall, an air-heating flue passinginto the Wall, arches extending over the combustion-chambers,longitudinal walls extending from the bottoms of the combustion-chambersto near thearches, and air-passages extending from the air-heating pipeto the sides and tops of the combustion-chambers, for the purpose setforth.

7. `The combination, in a bakers oven, of two furnaces, twocombustion-chambers, one in connection with each furnace, longitudinalWalls 12, extending from the bottom to near` tops of thecombustion-chambers, flues 17,

leading from the outer sides of the combustion-chambers into thechambers 18, fines lead- `35 ing from the chambers 18 to the front partsof the chamber 20, discharge-line from the rear of chamber 20, and Walls22 and 23 in said chamber, arranged substantially as and for the purposeset forth.

VILLIAM C. FOWLER. VILLIAM G. SCHAEFER.

Witnesses:

SAML. KNIGHT, EDW. S. KNIGHT.

